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	<title>10-原子表</title>
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		<h1>10-原子表</h1> 
	  <p>后盾人</p>
	  <h1>houdunren.com</h1>
	  <h1>hdcms.com</h1>
	</div>
	<script src="../tools/utils.js"></script>
	<script type="text/javascript">
 	var reg =  /^[\w\-]+@[\w\-]+\.(com|org|cn|cc|net)$/i;
 	var str = 'houdunren@hd.com.cn'
 	console.log(reg.test(str))

 	var reg = /^[\w\-]+@([\w\-]+\.)+(com|org|cn|cc|net)$/
 	console.log(reg.test(str))
 	 	
	</script>
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